Stem winding and setting watch



(No Model.)

G. A. & J. E. LOOKWOOD. STEM WINDING AND SETTING WATCH.

Patented Dec.7,1897.

WW @w 0 U f 2 MM PATENT GEORGE A. LOGKlVOOD AND JAMES E. LOCKlVOOD, OE CHARITON, lOlVA.

STEM WlNDlNG AND SETTlNG NAi'Gl-l.

SPECIFICATION forming part of Letters Patent No. 595,18 i, dated December '7, 189?.

Application filed April 22, 1897 Serial No. 633, 57. (1% model.)

To aZZ whom it may concern:

Be it known that we, GEORGE A. LOOK- wooD and JAMES E. LooKwooD, citizens of the United States, residing at Chariton, in the county of Lucas and State of Iowa, have invented a new and useful Stem lVinding and Setting and Stop Motion for Watches, of which the following is a specification.

This invention relates to watch-movements of the type in which the hands are set and the spring wound by means of a mechanism controlled by a movable part, such as the stem, which has a sliding movement in the pendant.

An essential feature of the invention is the provision of a mechanism which can be readily applied to an open-face or hunting-case watch, of simple and novel construction, and by means of which the hour, minute, and seconds hands can be accurately set to correspond with a movement of standard time.

For a full understanding of the merits and advantages of the invention reference is to be had to the accompanying drawings and the following description.

The improvement is susceptible of various changes in the form,proportion,and the minor details of construction without departing from the principle or sacrificing any of the advantages thereof, and to a full disclosure of the invention an adaptation thereof is shown in the accompanying drawings, in which Figure 1 is a view of the rear side of a watchmovement, the rear plate and bridge being removed, showing by full lines the relation of the means when the movement is held in check and by dotted lines the relative disposition of the stop-motion when out of action. Fig. 2 is a front view of the movement, the dialbeing omitted, showing the winding and setting mechanism in gear for winding the spring. Fig. 3 is a view similar to Fig. 2, showing the winding and setting mechanism in gear for setting the hands. Fig. 1 is a de tail view in perspective of a portion of the yoke, the lever for transmitting motion thereto, and a part of the stop-motion. Fig. 5 is a detail section of the pendant and the mechanism for transmitting motion from the stem to the winding and setting mechanism.

Corresponding and like parts are referred to in the following description and indicated in the several views of the drawings by the same referenee-characters.

The yoke 1 is mounted intermediate of its ends in any of the usual ways so as to rock, whereby the winding and setting mechanism may be thrown into or out of gear with the spring-winding or hands-setting mechanisms as desired. Idlers 2 and 3 are loosely mounted upon pins projecting from the end portions of the yoke and are in gear with an intermediate eog-wheel concentric with the axis of the yoke and intermeshing with a pinion 5, through which the winding-arbor U operates, said winding-arbor having the usual winding-square 7, formed with an annulargroove and receiving the inner end of the stem 8, slidably mounted in the pendant and provided at its outer end with the crown. A lever 9 is fuleruined near one end to the front plate of the movement and has an extension 10 entering the annular groove formed in the windin square, so that upon pressing inward upon the stem 8 the winding and setting mechanisms will be thrown into gear with the mechanism for win ding the spring. The inner or free end of the lever 9 is cut away, forming a shoul- (lei-12 and a projection 13, the shoulder 12 engaging with a protuberant part 14: of the yoke and the projection 13 extending thereover, whereby the idler 3 is normally held in engagement with one of the face-wheels, whereby motion is transmitted to the minute and hour hands. A spring 15 has connection at one end with the lever 9 and its free end engages with a portion of the front plate of the movement, whereby the yoke is held in a normal position. A spring-arm 1b is formed with or attached to the rear portion of the lever O and has a lateral extension 17, operating in a slot 18 in the outer end of a link 19, having pivotal connection with the inner end of the yoke 1. The lateral extension 17 has portions projecting beyond the sides of the slot 18, so as to hold the parts 10 and 19 in positive engagement. The outer portion of the lateral extension 17 is turned so as to aline with the slot 18, through which it is passed, after which the lever 9 is turned so as to cause the outer part of the extension 17 to sit crosswise of the slot 18, and thereby retain the parts 9 and 10 in engagement. The spring-arm 16 has a limited play with respect to the 'link 19, whereby the shoulder 2 is disengaged from the protuberant part It prior to the engagement of the extension 17 with the outer end of the slot 18 for drawing upon the yoke to disengage the idler 2 from the face-wheel and bring the idler 3 into engagement with the toothed wheel secured to the arbor passing through the spring-barrel and having thezinner end of the spring connected therewith.

The pin upon which the idler 2 is mounted is extended and operates through a slot 20, as shown at 21, and operates in the bifurcated end 22 of a lever 23, fulcrumed between its ends to the rear side of the front plate, whereby said lever 23 is simultaneously operated with the yoke. A second lever 24 is tfulcrumed to the same plate with the lever 23, and one end is slotted to receive the red u eed end of the lever 23, and its opposite end is bent, as shown at 25, to engage with the teeth of a wheel secured to the staff bearing the seconds-hand. When the idler 2 is in engagement with the face-wheel, the bent end of the lever 2i is in engagement with the toothed wheel applied to the seconds-hand staff, whereby the stop-motion is in active operation, and upon pressing inward upon the stem 8 the yoke 1 is rocked and releases thestop-motion from the train of gearing of the time-movement andpermits the latter to operate and determine the interval of time elapsing between the inner movement of the stem and the outward movement thereof,

whereby the interval may be correctly indicated both in minutes and seconds, as will be readily understood.

The improvement, as will be obvious, can be applied to a pendant or lever set watch and to an open-face or closed Watch and to movements of various makes and sizes.

Having thus described the invention, what is claimed as new is 1. In a watch-movement, the combination of a pivoted yoke bearing idlers at its ends, a stem, intermediate mechanism between the stem and idlers for rotating the latter, a lever operated by means of the stem and normally engaging with the yoke, a spring for holding the said lever and yoke in a normal position, and a spring-arm applied to and movable with the said lever and having connection with the yoke, substantially as and for the purpose set fortln 2. In a watch-movement, the combination of a pivoted yoke bearing the hands-setting and spring-windin g mechanisms and having a protuberant part, a lever having a shoulder normally engaging with the protuberant part of the yoke, and formed with a projection to extend over the part engaged by the aforesaid shoulder, and a Spring-arn1 applied to and movable with the lever and connected with the yoke, substantially as and for the purpose set forth.

3. In a watch-movement, the combination of a pivoted yoke bearing the hands-setting and spring-windin g mechanisms, a stem, a leverhavin g an extension to be operated upon by the winding stem or arbor, an arm applied to the lever, and a link having pivotal conneetion with the yoke and a limited sliding connection with the said lever, substantially as and for the purpose set forth.

i. In a watch-movement, the combination of a pivoted yoke bearing the hands-setting and spring-winding mechanisms, a pin projecting laterally from the yoke through the plate, a lever having a bifurcated or slotted end to receive the projecting end of the pin, and a second lever having loose connection with the first-mentioned lever and adapted to engage with a tooth of a wheel applied to the seconds-hand staff, substantially as set forth.

5. In combination, a pivoted yoke bearing the hands-setting and spring-whirling ineehanisms, a lever controlled by means of the stem and having a shoulder to engage with a protuberant portion of the yoke and a projection to extend thereover, a link having pivotal connection with the yoke and slotted at its outer end, a spring-arm applied to the lever and provided with a lateral extension operating in the slot of the pivoted link, and having a portion overlapping the sides of the slot, a pin projecting laterally from the yoke, a lever having a bifurcated end to receive the projecting end of the pin, and a second lever having loose connection with the bifurcated lever and having a bent end to engage with the toothed wheel applied to the secondshand staff, substantially as set forth.

' In testimony that we claim the foregoing as our own we have hereto affixed our signatures in the presence of two witnesses.

G. A. LOOKWOOD. JAMES E. LOC'ICWOOD.

IVitnesses:

13. R. VAN DYKE, THOMAS L. DUNCAN. 

